Omron · NJ/NX-series Machine Automation Controller
An error code was reported by a slave device when a Slave Error Detected (77860000 hex) error occurred. This is a secondary error indicating that a more specific error originated from an EtherCAT slave.
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Check the Sysmac Studio Controller Log and EtherCAT Diagnosis for specific error codes and messages reported by the problematic EtherCAT slave device.
Inspect the EtherCAT communication cables and connectors (IN/OUT) for the identified slave device for damage, loose connections, or improper routing.
Measure the power supply voltage at the input terminals of the identified EtherCAT slave device and verify it matches the device's specified operating voltage.
Inspect all status LEDs (e.g., ERR, LINK/ACT, PWR) on the identified EtherCAT slave device for abnormal indications.
Verify the EtherCAT slave device's configuration parameters in Sysmac Studio, ensuring they match the expected device settings and the application's requirements.